It's from podcasts like This American Life, The TED Radio Hour and 99% Invisible that I came to believe that the best podcasts are well-produced: they have a central theme with integrated sound bites and interview segments and narrative segways. They aren't just people talking for an hour without any editing. Then I heard SpyCast, Covert Contact and Pod Save America. I'm sure they're also edited to remove burps and phones and sirens, but they are fairly straightforward interviews or conversation, and they're completely amazing. So really, it's whatever works for you. These are a few of my favorite listenings.